President Obama
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Islamic State crisis: Obama threatens action in Syria

US President Barack Obama has said he will not hesitate to take action against Islamic State (IS) militants in Syria as well as Iraq.

In a nationally televised speech outlining his strategy against IS, he said that any group that threatened America would "find no safe heaven".

He also announced that 475 US military personnel would be sent to Iraq but said they would not have a combat role.

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